Oil refining system



June 23, 1931. D; PYZEL I 01L REFINING SYSTEM ori inai Filed Dec. 27,920

' 4a mzaerfkaeq i nam d... 23. 1931 UNITEDLSTATES,

PATENT orm-cs Dann rma or mm, cum-0min, assrenon, B Y unsnn assremmm's,'rosHELL nnvnnormnn'r column, or sen rnencrsco, camron'm, A conrom'rronor, nmwm OIL nnrmme 'svsrnm I Application filed'llecem-ber 27, 1920,Serial a 433,099. Renewed-bomber 22, 1929.

My invention relates :to the refining of crude petroleumor petroleumproducts. An

object of myinvention is to provide means by which oil vapors may bereadily condensed S'using sea water or other water containing foreignmatter in solution or suspension.

- This, I accomplish by passing the vapors to condensed through a closedconduit filled withthe sea water or other impure water, so that thewater and vapors are in direct contact with each other and the vaporscondense lnto a liquid which is mixed with the cooling water. Otherinventors have attempted to accomplish the same result but have wholl orpartially failed due to "the tendency o the condensed oil vapor'to'formemulsions with the water, these emulsions. bemg more or less fixed anddiflicult-to'sep arate into their componentsoil'and water.

It is an object of my invention to provide means for, preventing theformationof ti ht or fixed emulsions.

urther objects and advantages will made evident hereinafter. 1

7 Referring to the drawings which are for illustrative purposes only,Fig. 1 is a diagrammatic side elevation ofone embodiment of myinvention. "Fig. 2 is a plan view-of the same, and #9 Fig.- 3 is an endview taken in the direction of the arrow 30, Fig. 1'.

Broadlyconsidered my invention con-.

sists'of a still 11, a dephlegm The still .11- may be of any convenientform, oil vapors being taken therefrom the form shown in Fig. 1. hevapors rise 1 through the openings 22 in one series ofpans 23' assinaround the eri'heriesof the in- Q y p g p P through the cooler 15,it.1spossible Q P .termediate pans 24, the vapors being finally 1 fdelivered into a'he ader 26.", This header, in

the form shown, has four small pipes 30.con-. nect'ed therein, each pipebem-g prov ded I with a .valve 31. achfbf the. pi cs terminate'in an e32, each'nozz 0 pro-' Y 5- jectinginto on of the condenser tubes 13.

- V ator 12, a series of condenser tubes 13,- a settling'tank 14,3. 2cooler 15 and a pump 16.

' The condenser. tubes 13 are each provided with an elevated end 43which is connected into a header 44 vented as shown at 45, The header 44is ,connectedinto a pipe 46 which extends down into the bottom of-thesettling tank 14 near one end thereof. The 50 settling tank 14 isprovided at the opposite end of the pipe 46 with an oil outlet pipe 47and a water outlet pipe 48. The oil out-' .let pipe isconnected into the'top of the tank. The water outlet pipe 48 is 'connected into thebottomof the tank, water passing through a U shaped bend 49 which isvented at 50L A by-pas valve51 allows the tank to be entirely empt ofwater if desired.

A pipe 60 is connected to thebottom of the dephlegmator 12 with thesuction side of the pump 16, the pressure side of this pump beingconnected through a pipe 61 with the bottom of a coil 62 in the cooler15. The top of the coil 62 is connected through a apipe 63]w1th a nozzle64 in the top of the ephlegmator 1-2. Cooling water is admitted to thecooler 15 through a pipe .65 and-withdrawn through a i I 66.

I emethod of operation is asfollows:

re'ctly brought. into intimate contact with 35 cold condensates carriedin the pans 23" and 24. This condensate runs downnnto the bottom of thedephlegmator and 1s forced through the pipe 60 and 61 into the cooler 15where it is thoroughly "cooled, bei'n tor through the :cooler- 64.

v the vapors 'praeticallg all ofthe heavier oil con ensates' are takenvof! through a ipe 71 controlled by a valve 70, thisvalve being'leftslightly open so that 100 vapors. Heavy v g then delivered into the toppan of the dep eglimtubes 13, thus there isa continuous flow of heavycondensates therefrom. The light vapors which will not condense indephlegmator 12 are depor travel in the same direction-inside the tubes.The valves 31 are regulated to produce large bubbles of gas which arecondensed into liquid form in their travel in the water in tubes 13. 4

The combined water and condensates are delivered through the pipe 46 tothe settlingtank 14. In this tank the oil and water a separate, the oilrising to the top and passing oil through the pipe 47, the water beingdrawn ofi through the pipe '48.

It isposs'ible by using myinvention to use. extremely dirty water oreven sea water in the eatly reducing the cost of cooling and m ng it"possible to locate oil refining plants where there is no supply of purecoohng water. Some of the oil vapors delivered from the still 11 throughpipe 20 may be very heavy. If the vapors from the still werepasseddirectly' into the tubes 13,

t'er, removing the resultant condensate from said zone, cooling atleasta portlon of sa d condensate and returning the same to saiddephleg'mating zone to serve as .a dephlegmating medium for-the vaporsthere n, removing'uncondensedvapors from said dehlegmating zone andbringinthe same into direct contact with water to e ect condensa tionthereof, and separating the condensed va ors from the water.

. testimony whereof,- I have hereunto set my hand at the city and countof San Francisco, California, this 20th ber, 1920. I

a DANIEL PYZEL.

ay of Decemthe heavy condensates would form, troublesome emulsions withthe cooling water.'

By the. use of the dephlegmator I am able a to remove from the vapor allof these heavy condensates which would otherwise form emulsions. Thelight vapors which as into the tubes 13 are of such a character at theydo nottend to form emulsions but readily settle out in the settling tank14.

In practice the pump 16 is used to revent emulsificationbeing speeded upto re use the temperature of the dephlegmator 12 and-thus Y remove moreheavy vapors inthe event that the operator finds any emulsificationoccurs.

I claim as my invention: a 1; An improvement the art of-treatinghydrocarbon oil vaporscontaining constituents which u on condensationwould form emulsions wi water comprising introducing a the vapors to adephle'gmat'ing column,'re-

moving condensate from the dephlegmating.

column, plar'aing the same under a mechani pressure, passing suchcondensate thence through a cooling zone and returning the coolecondensate to the-dephlegmating column, maintaining the rate ofcirculation of said condensate from said dephlegmating'; I zone throughsaid cooling zone andback to said dephlegmating zone such that thevapors I esca'jm from the dephlegmating column will of saidconstituents.

v 2. 'Inthe-condensation of-hydroearbon va- -por's'conta" .densation em7 'fy with water, the-method constituents which onconwhich comprisespassing the va ors 'thru'a 3 dephl atingzone and controlling thecondensation therein so as to condense from-the vapors the constituentsemulsifiable with wa-

